product

Product Category

loading

Bottom-removable FFU | Bottom-replaceable fan filter unit

Aili Industrial down-mounted FFU (under-replaceable fan filter unit) is a modular purification equipment designed for clean room air filtration and air supply applications. The filter can be removed and replaced from the clean room side. It is suitable for clean environments that require filter maintenance methods, upper space on the ceiling, and convenience for later maintenance. Products can be equipped with HEPA or ULPA filters according to project requirements, and can be selected in combination with AC or EC fans, air volume, static pressure, installation dimensions and control methods. It supports independent control, FFU group control, RS485, PLC and other control schemes, and can be used in clean production and experimental environments such as semiconductors, precision electronics, lithium batteries, photoelectric displays, photovoltaics, and biomedicine. Aili Industrial has relevant R&D and manufacturing capabilities for fans, motors, control systems, filters and FFU complete machines, and can provide detachable FFU product configurations and technical solutions based on specific projects.
  • ALGY-XCS1175

Status:
Quantity:

 

Product configuration parameters: Conventional detachable FFU product parameters

parameter

Configuration instructions

product type

Bottom-detachable FFU / bottom-replaceable FFU

Product name

FFU fan filter unit

Fan type

AC AC fan/EC DC fan are optional

filter

HEPA/ULPA optional 

Air volume

Match according to project requirements

static pressure

Match according to system resistance

wind speed

0.45m/s (can be customized)

Control method

Single machine manual, touch screen group control, and computer centralized control are optional

Communication method

RS485, PLC, etc., configured according to the project

Installation method

Clean room ceiling system

Cabinet material

304 stainless steel, 316 stainless steel, aluminum-zinc plate, cold-rolled steel plate, painted, aluminum plate, etc. (selected according to project requirements)

power supply

220V 50Hz (can be customized)

Maintenance method

Replacement under clean room side filter

custom made

Supports customization of size, air volume, control and other projects

Note: The specific fan, filter and control configuration are subject to the actual product model and project technical requirements.

Why choose drop-down FFU?

Filter maintenance method is an important factor in FFU selection

The difference between ordinary FFU and detachable FFU lies not only in the product structure, but also in the post-maintenance method of the filter.。

For clean room designers, in addition to paying attention to parameters such as air volume, static pressure, filtration efficiency and noise during the FFU selection stage, they also need to consider:

  • FFU installation location; space above the ceiling; equipment and pipeline layout; filter replacement channel

  • Operation space for maintenance personnel; clean room shutdown maintenance method; convenience of later filter replacement.

The detachable FFU changes the direction of filter maintenance so that the filter can be removed and replaced from the clean room side, providing a different maintenance solution for specific clean rooms.

The working principle of Aili Industrial's detachable FFU products: How does the detachable FFU work?

Indoor return air/upper air

→

FFU air intake

→

fan drive

→

HEPA/ULPA filter

→

clean air

→

Clean room work area

→

When the filter needs maintenance

→

Disassembly and replacement from below the clean room

Maintenance advantages of Aili industrial detachable FFU

Design for clean room post-maintenance

After the clean room project is put into operation, the filter is a maintenance component that needs attention.

Traditional maintenance methods may suffer from:

  • The upper space of the suspended ceiling, air ducts and pipelines, equipment layout, maintenance access, factory floor height and other on-site conditions are affected.

The detachable FFU designs the filter maintenance path on the clean room side, which can provide a more suitable maintenance method for some clean rooms with limited space.

Particularly suitable for projects focusing on:

The upper space is limited | Equipment is dense above the ceiling | The filter needs to be maintained from the clean room side | The convenience of post-maintenance requirements for the clean room is high | The number of FFUs is large and the filter replacement efficiency needs to be considered

Therefore, Aili Industrial's detachable FFU can core components, structural design to complete machine manufacturing .be collaboratively developed from

What projects are the detachable FFU suitable for? What scenarios are the detachable FFU suitable for?

The bottom-down FFU is especially suitable for filter maintenance methods, upper space and subsequent maintenance conditions .clean room projects that have clear requirements for

For example:

  • Clean room with limited space above the suspended ceiling | Factory building with dense upper equipment and pipelines

  • Areas where it is inconvenient to maintain the FFU from above the ceiling | Projects that require the convenience of filter replacement

  • Clean rooms with a large number of FFUs that require planning for later maintenance | Clean production areas such as semiconductors, electronics, and optoelectronic displays

How to choose between detachable FFU and ordinary FFU? Selection of detachable FFU and other FFU structures

Compare items

Detachable FFU

Other FFU structures

Filter maintenance directions

Maintenance from the clean room side

Determine according to specific structure

Upper maintenance space

Lower requirements for some projects

Determine based on structure

Clean room side maintenance

support

Determine based on product structure

Applicable scenarios

Check out the maintenance-friendly cleanrooms below

Choose according to project conditions

Installation method

Designed according to ceiling system

Designed according to specific products

filter

HEPA/ULPA etc.

Choose according to model

fan

AC/EC and other plans

Choose according to model

Control method

Independent control/group control, etc.

According to product configuration

How to choose a detachable FFU?

There is no single structure for FFU that applies to all projects.

If the project is more concerned about:

The filter is maintained from the clean room side, the upper space conditions and the convenience of subsequent maintenance,

You can focus on the detachable FFU.

If the installation and maintenance conditions of the project are different, other structural forms can be selected according to the overall design of the clean room.

Application scenarios

Aili Industrial FFU is widely used in various frontier fields that have strict requirements for air cleanliness:

Semiconductor manufacturing : wafer lithography, etching, thin film deposition, packaging testing, third-generation cleaning machine, EFEM equipment front-end module, Load Port wafer transfer box interface. Ultra-low vibration and ultra-low outgassing ULPA filter material is required to ensure nano-level process accuracy.

Panel display manufacturing : TFT-LCD array substrate process (thin film deposition, photolithography, etching), color film preparation, box forming process (orientation layer coating, friction orientation, liquid crystal injection), OLED evaporation, module assembly. Aili Industrial optimizes the airflow pattern for OLED, LCD lamination, inspection and other work stations to reduce panel production defects.

Photovoltaic manufacturing : Silicon wafer cleaning, diffusion texturing, PECVD coating, screen printing and other processes require strict control of fine dust and gaseous molecular pollutants to ensure cell conversion efficiency.

Biomedicine : GMP sterile workshop, vaccine filling line, freeze-dried preparation production, sterile preparation filling. A continuous and stable high-cleanliness environment is required to ensure drug safety.

Medical facilities : Class 100 clean operating room, stem cell laboratory, ICU ward. It needs to operate with low noise and low vibration to ensure the safety of patients and the operating comfort of medical staff.

Lithium battery new energy : pole piece coating, battery core winding, electrolyte injection area. Optional protective FFU (to prevent conductive dust intrusion) and explosion-proof FFU (to eliminate the risk of static sparks) ensure battery performance and production safety.

Precision manufacturing : aerospace component assembly, OLED panel inspection, SMT patch line, precision mold processing. Micro-vibration control and a stable and clean environment are required to ensure product accuracy.

Precision optical coating : In the coating process of optical lenses, filters, etc., particles as small as 0.3 microns can cause film defects, and an ultra-clean environment is required to ensure coating quality.

Medical device manufacturing : Sterile medical device production, implant processing, testing and packaging, and other processes require a sustained and stable high-cleanliness environment to ensure product safety.

In vitro diagnostic reagent production : The diagnostic reagent filling line has extremely strict requirements for microbial control, which is related to medical safety and testing accuracy.

Data center : Server rooms and storage equipment are sensitive to dust. Fine particles can easily adhere to the hardware surface and affect heat dissipation and operational stability. Low noise and low vibration FFU are required to ensure long-term reliable operation of the equipment.

Food industry : High-cleanliness packaging workshops, dairy/beverage filling lines, and fermentation environment microbial control require corrosion-resistant and easy-to-clean stainless steel FFU to ensure food safety.

Fine chemicals : In the production of high-purity chemicals, precision ingredients, and product packaging, particulate matter and chemical gaseous pollutants need to be controlled to ensure product purity and consistency.

Universities and scientific research laboratories : Experimental environments such as microbial testing, precision instrument operation, and sample preprocessing require local high cleanliness to ensure the accuracy and repeatability of experimental data.

FAQ

What is a drop-down FFU?

The down-mounted FFU is a fan filter unit that can remove and replace the filter from below the clean room. It is suitable for clean room environments that have specific requirements for filter maintenance paths.

What is the difference between the detachable FFU and the ordinary FFU?

The main difference is the filter maintenance structure and maintenance direction. The detachable FFU sets the filter maintenance path on the clean room side. The specific structure and installation method need to be determined according to the product model.

Can HEPA filters be used with drop-down FFUs?

Can. The detachable FFU can be equipped with a HEPA filter according to clean environment requirements.

Can a ULPA filter be used with a drop-down FFU?

ULPA filters can be configured according to specific product structure, filter size, air volume and resistance conditions.

Can the EC fan be used with the bottom-down FFU?

EC fan solutions can be configured according to air volume, static pressure, installation size and control requirements.

Is the bottom-down FFU suitable for semiconductor clean rooms?

It can be used in semiconductor clean rooms, but specific product selection needs to be determined based on conditions such as cleanliness level, air volume, wind speed, static pressure, filters, and clean room airflow organization.

Does the down-mounted FFU need to be maintained from above the clean room?

The design feature of the down-mounted FFU is that the filter can be removed and replaced from the clean room side, thus providing a product solution for clean rooms that require maintenance below.

Can Aili Industrial customize the detachable FFU?

The installation dimensions, air volume, static pressure, filters, fans, control methods and other structural requirements of FFU can be communicated according to project needs.

Choose the right FFU solution for your cleanroom

If you are doing:

Semiconductor clean room construction

Electronic factory clean room construction

Lithium battery clean room construction

Photoelectric display clean room construction

Clean room renovation

FFU equipment replacement

FFU bulk purchase

The installation size, air volume, static pressure, filter level and control requirements of the project can be provided to Aili Industrial.

Ai Li Industrial

Clean room core components and equipment manufacturer

Telephone:136 4625 8112

Previous article: 
Next article: 
Aili Industrial develops and manufactures FFU, EFU, HEPA/ULPA air filters, high-efficiency air supply vents, fan boxes and other clean air equipment. Relying on motors, fans, control systems, filters and complete machine supporting capabilities, we provide selection and customization support for clean room and production equipment projects.

product

Quick links

Join a global perspective

Get the latest industry white papers and technology updates.
© Suzhou Aili Industrial Co., Ltd. All rights reserved.